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Middle block fire grate sheet

A grate piece and medium block technology, which is applied in the boiler field, can solve the problems of increasing the labor intensity of the staff grate piece, short service life, and a large number of chain-belt type fire pieces

Inactive Publication Date: 2009-04-22
李立华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the chain-belt grate commonly used in industrial boilers is connected in series by the same long pin of the grate. The chain-belt grate has a large number, is easily deformed and broken at high temperature, and has a short service life, which increases the need for staff to repair or replace The labor intensity of the grate piece

Method used

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] figure 1 , 2 3. For the middle block grate shown in 3, the combustion surface of the grate frame 3 is provided with 2-4 rows of ventilation grooves 2, the middle of the ventilation grooves is provided with reinforcing ribs 4, and the upper side of the grate frame 3 back is provided with a Connecting sleeve 1, two connecting sleeves 11, 12 are arranged on the lower side of the back, and the two connecting sleeves are placed at both ends, and the three connecting sleeves 1, 11, 12 on the back of the grate frame 3 are connected through the fixing frame 5, and the fixing frame 5 and the grate frame body 3 are cast in one body. The three connecting sleeves are respectively provided with sleeve holes. When installing, among the two adjacent grate pieces connected in series up and down, the upper side connecting sleeve 1 on the lower grate piece extends into the two ...

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Abstract

The invention relates to a medium-sized lumps fire grate segment, a framework of which is provided with three adapter sleeves, wherein, one adapter sleeve is arranged in the middle at one side of the framework, and the other two adapter sleeves are arranged at the two ends of the other side of the framework, and the three adapter sleeves on the back of the framework of the fire grate segment are connected with each other by a fixing bracket which is moulded together with the ramework of the fire grate segment into a whole; a plurality of fire grate segments are connected in series to form a hearth through a long pin through connection sleeve hole, so that the whole structure has high strength, difficult burnout, long service life, little wastage and low cost; a combustion front of the fire grate segment is provided with 2-4 lines of ventilating slots, a reinforcing rib is arranged in the middle of each line of ventilating slots, coal is paved on a combustion front of the hearth, and air in a draught chamber enters the coal through the ventilating slots, thus the ventilation effect is good, and the coal is fully burnt.

Description

technical field [0001] The invention relates to the technical field of boilers, in particular to a medium-block fire grate. Background technique [0002] The grate is a part of the boiler or industrial furnace that stacks solid fuel and makes it burn effectively. The whole grate mainly includes two parts: the frame body and the grate piece. The grate pieces are usually made of cast iron, and the necessary ventilation gaps are maintained between the pieces after assembly, and a separate ventilation room that can adjust the air volume is often set under the grate, so that the air can enter the fuel layer through the gaps, so that the coal can be fully burned. [0003] At present, the chain-belt grate generally used in industrial boilers is connected in series by the same long pin of the grate. The chain-belt grate has a large number, is easily deformed and broken at high temperature, and has a short service life, which increases the number of staff in maintenance or replaceme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23H1/02
Inventor 李立华
Owner 李立华
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